Macrobiotus orcadensis Murray, 1907c

Kaczmarek, Łukasz, Michalczyk, Łukasz & Mcinnes, Sandra J., 2015, Annotated zoogeography of non-marine Tardigrada. Part II: South America, Zootaxa 3923 (1), pp. 1-107 : 73-74

174. Macrobiotus orcadensis Murray, 1907c [T]

Macrobiotus orcadensis J. Murr., 1907 (de Barros 1942b)

M. orcadensis Murray, 1907 ( Claps & Rossi 1988)

Macrobiotus orcadensis J. Murray, 1907 ( Rossi & Claps 1989) M. orcadensis Murray ( Claps & Rossi 1997)

Terra typica: Orkney Islands ( Scotland, UK)

Argentina:

• 27°44′S, 57°55′W; 50 m asl: Corrientes Province, Lomas de Vallejos, moss on soil near small pool. Claps & Rossi (1988)

• 54°44′S, 67°49′W; 200 m asl: Tierra del Fuego Province, Rancho Hambre, peat-bog, moss ( Sphagnum sp.). Rossi & Claps (1989)

• 54°48′S, 68°29′W; 200 m asl: Tierra del Fuego Province, Rio Pipo, peat-bog, moss ( Sphagnum sp.). Rossi & Claps (1989)

• 54°50′S, 68°29′W; 100 m asl: Tierra del Fuego Province, road to Lapataia, peat-bog, moss ( Sphagnum sp.). Rossi & Claps (1989)

• 54°51′S, 68°29′W; 0 m asl: Tierra del Fuego Province, Tierra del Fuego National Park, Bahia Ensenada, mosses and lichens on rocks. Rossi & Claps (1989)

Brazil:

• 24°11′S, 46°47′W; 0 m asl: São Paulo State, Itanhaém. de Barros (1942b)

Uruguay:

• 31°03′S, 57°38′W; 50 m asl: Salto Department, Arroyo Palomas, mosses or lichens on rocks, trees or posts or aquatic macrophytes. Claps & Rossi (1997)

• 34°25′S, 57°44′W; 50 m asl: Colonia Department, Riachuelo, mosses or lichens on rocks, trees or posts or aquatic macrophytes. Claps & Rossi (1997)

Record numbers: Argentina: 5, Brazil: 1, Uruguay: 2; total: 8.

Remarks: Based on the eggs, Murray (1907c) suggested this species belonged to the Macrobiotus furciger group and the main reports for this species are from the Palaearctic with sites in New Zealand and South America. As the furciger group requires verification ( Binda & Rebecchi 1992 and Binda et al. 2005), the mainly northern Palaearctic distribution suggests this South American record is a misidentification requiring further analysis.